1121288232 has 64 divisors (see below), whose sum is σ = 2869257600. Its totient is φ = 365057280.

The previous prime is 1121288209. The next prime is 1121288243. The reversal of 1121288232 is 2328821211.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1121288232.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182718 + ... + 188754.

It is an arithmetic number, because the mean of its divisors is an integer number (44832150).

Almost surely, 2^1121288232 is an apocalyptic number.

1121288232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1121288232 is an abundant number, since it is smaller than the sum of its proper divisors (1747969368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121288232 is a wasteful number, since it uses less digits than its factorization.

1121288232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6226 (or 6222 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 1121288232 is about 33485.6421769092. The cubic root of 1121288232 is about 1038.8968307314.

The spelling of 1121288232 in words is "one billion, one hundred twenty-one million, two hundred eighty-eight thousand, two hundred thirty-two".